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作物学报

作物学报 ›› 1985, Vol. 11 ›› Issue (03): 181-190.

• 研究论文 • 上一篇    下一篇

应用15N示踪法对大豆不同来源氮素吸收与利用的研究

侯立白   

  1. 中国农业科学院作物育种栽培研究所
  • 收稿日期:1985-01-02 修回日期:1985-04-06 出版日期:1985-09-12 网络出版日期:1985-09-12

STUDIES ON THE ABSORPTION AND UTILIZATION OF DIFFERENT NITROGEN SOURCES BY SOYBEAN BY MEANS OF 15N ISOTOPE TRACER

Hou Libai, Li Qizhen, Sun Keyong   

  1. Institute of Crop Breeding and Cultivation; Chinese Academy of Agricultural Science
  • Received:1985-01-02 Revised:1985-04-06 Published:1985-09-12 Published online:1985-09-12

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摘要： 应用~(15)N 示踪技术,利用克拉克结瘤(R_(jl))和不结瘤(r_(jl))等位基因系以及3种氮处理造成4种不同氮素营养条件,研究在几种氮源单独或混合供应的情况下,各种来源氮素在大豆生长和产量形成过程中的相对重要性及其相互影响。试验结果表明,大豆前期主要利用土壤和肥料中氮素,并以土壤氮素为主,后期主要利用共生固氮。施氮对固

Abstract: The relative importance of different nitrogen sources which wereprovided singly or mixedly to the growth and output formation of soybeanand their interactions were studied by means of~(15)N tracing techniqueand using nodulating and non-nodulating Clak isolines.Because of the difference between soybe

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